Cross-Company Vendor & 1099 Data Appearing Across Separate QBO Files (Different EINs)
I manage multiple QuickBooks Online companies with separate subscriptions and different EINs.
Recently, vendors began appearing in a company where they were never paid (no bills, checks, expenses, or bank transactions). This also impacted 1099 previews.
After investigation, the issue appears to have started when the same online banking credentials were used to connect bank feeds across multiple QBO companies. Bank feeds are now disconnected and separate banking logins are being established.
Important context:
• Each company has its own EIN and subscription
• Vendors are not shared between companies
• The affected vendor was never paid in the other company
• No 1099s were e-filed through QuickBooks
This appears to be a cross-company data integrity / identity-mapping issue, not duplicate entry or cleanup within a single file.
I am looking for guidance on:
1. Whether this type of cross-company vendor contamination can be fully resolved via Intuit backend escalation
2. Best practices to prevent recurrence once bank feeds are reconnected
3. When a clean forward strategy or rebuild is truly necessary vs escalation
I appreciate insights from ProAdvisors or Intuit moderators who have seen this scenario before.